SketchEl!(6,6)
C=2.1519,-2.1000;0,0
C=2.1519,-3.6000;0,0
O=3.4509,-1.3500;0,0
N=3.4509,-4.3500;0,0
C=4.7500,-3.6000;0,0
C=4.7500,-2.1000;0,0
1-2=1,0
1-3=1,0
2-4=1,0
4-5=1,0
5-6=1,0
6-3=1,0
!End
